[The vitamin A level in cow's milk and butter in Kharkov District].
D000818:Animals; D002079:Butter / Q000032:analysis*; D002417:Cattle; D005260:Female; D008892:Milk / Q000032:analysis*; D014455:Ukraine; D014801:Vitamin A / Q000032:analysis*
D014801:Vitamin A; D002079:Butter
A-vitaminnaia tsennost' korov'ego moloka i masla v Khar'kovskoĭ oblasti.